I've used Tracker Software's PDF-XChange products for over seven years and they do a superb job of handling and editing my PDF files. The PDF-XChange Editor is powerful, intuitive, easy to learn and use, and has an excellent and detailed User Manual. Best of all, it has allowed me to get rid of that user-snarly Adobe bloatware from our computers.
Also, I've said this to many people over the years and it still holds true: I've owned and worked with computers since 1985 and Tracker Software has far and away the best customer support of any of the countless IT-related companies I've ever dealt with, bar none. Instead of days or weeks, an email question to Tracker's customer support is normally answered in hours - frequently in only minutes - and the answers are always clear and informative. In my experience Tracker's customer service is absolutely the best in the industry!
Thanks for a first-class product and for being such a pleasure to deal with over the years. I'll continue to highly recommend Tracker Software's products every chance I get.